Could we have another world war?

Could another world war occur? Yes, because the war in Iraq and how every place wants to rule the world. and how we are fighting for the oil and the gas. Well there's a good chance that it can happen if the right events occur.

One of the main reasons for the first two world wars was the alliance system. Right now we are allies with other countries and if the try to start a war or some thing then since we are allies with them it will lead to a massive world war. One nation is going to ask us for help, because we are their allies. Then another nation will fight for their allies. For example, Iran is making a nuclear bomb then that can start another world war. If they attack Israel and we attack them, then the allies of Iran will attack us and it will snowball into a world war.

Well any thing can happen it all depends on what happens in the future. I hope it won't happen. If it does then it can be scary and sad because of the violence. All the stuff that we would have to go through again would be just like the last war, except more dangerous, because of the nuclear bombs.